Overview
Installation
Operation
Maintenance
Warranty
9. Connection of optional equipment
Water heaters with a coil can be connected to a gas / fuel oil
boiler. In this configuration, the water heater commands the
heat generation to the boiler.
The connection of the boiler has to be made on the contacts
C1
and
C2
of the wiring board.
Always switch-off power before any operation.
9.1. Connection to a boiler.
A dedicated cable channel exists for the connections. Please use it.
To access the wiring board read the instructions to remove the front cover.
When associated with a photovoltaic system you can store the
excess energy produced in the water heater as hot water. Once
the photovaltaic panels produce enough energy, the inverter
sends a signal to the water heater which switchs into a special
mode ( PV ) activating the heat pump. If the inverter signal stops,
the water heater switches automatically back to the previous
operating mode. In this PV mode the set temperature is changed
to 62 ° C (no modification possible) and on the display appears
«PV».
The water heaters linked to a photovoltaic installations has to be
connected to the inverter module.
The connection to the inverter is done with
B1
and
B2
of the
wiring board.
9.2. Connection of a photovoltaic station.
Diagram potential 230V
Diagram dry contact
Electric power supply
Boiler connection
dry contact
A1
A2
B1
B2
C1
C2
Power supply
Photovoltaic connection
contact 230V~
A1
A2
B1
B2
C1
C2
Power supply
Photovoltaic
connection
dry contact
A1
A2
B1
B2
C1
C2
A1
A2
B1
B2
C1
C2
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